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(Unicode C) Amazon Glacier Upload Archive from In-Memory DataDemonstrates how to add an archive to a vault from data in memory. Note: This example requires Chilkat v9.5.0.78 or greater.
#include <C_CkRestW.h> #include <C_CkAuthAwsW.h> #include <C_CkBinDataW.h> #include <C_CkCrypt2W.h> #include <C_CkStringBuilderW.h> void ChilkatSample(void) { HCkRestW rest; BOOL bTls; int port; BOOL bAutoReconnect; BOOL success; HCkAuthAwsW authAws; HCkBinDataW bd; HCkCrypt2W crypt; const wchar_t *treeHashHex; const wchar_t *linearHashHex; HCkStringBuilderW sbResponseBody; int respStatusCode; const wchar_t *archiveId; const wchar_t *location; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. rest = CkRestW_Create(); // Connect to the Amazon AWS REST server in the desired region. bTls = TRUE; port = 443; bAutoReconnect = TRUE; success = CkRestW_Connect(rest,L"glacier.us-west-2.amazonaws.com",port,bTls,bAutoReconnect); // Provide AWS credentials. authAws = CkAuthAwsW_Create(); CkAuthAwsW_putAccessKey(authAws,L"AWS_ACCESS_KEY"); CkAuthAwsW_putSecretKey(authAws,L"AWS_SECRET_KEY"); CkAuthAwsW_putServiceName(authAws,L"glacier"); CkAuthAwsW_putRegion(authAws,L"us-west-2"); success = CkRestW_SetAuthAws(rest,authAws); // -------------------------------------------------------------------------- // Note: The above REST connection and setup of the AWS credentials // can be done once. After connecting, any number of REST calls can be made. // The "auto reconnect" property passed to rest.Connect indicates that if // the connection is lost, a REST method call will automatically reconnect // if needed. // -------------------------------------------------------------------------- // Load the data to be uploaded. bd = CkBinDataW_Create(); success = CkBinDataW_LoadFile(bd,L"qa_data/jpg/penguins.jpg"); // (The point here is that the contents of the bd don't necessarily have to come from a file.) // // For more information, see Glacier Upload Archive Reference Documentation // CkRestW_AddHeader(rest,L"x-amz-glacier-version",L"2012-06-01"); // We'll need to pre-compute the SHA256 tree hash and the SHA256 linear hash. // The hashes are added in the following request headers: // x-amz-sha256-tree-hash: SHA256 tree hash // x-amz-content-sha256: SHA256 linear hash crypt = CkCrypt2W_Create(); CkCrypt2W_putHashAlgorithm(crypt,L"sha256-tree-hash"); CkCrypt2W_putEncodingMode(crypt,L"hexlower"); treeHashHex = CkCrypt2W_hashBdENC(crypt,bd); CkRestW_AddHeader(rest,L"x-amz-sha256-tree-hash",treeHashHex); CkCrypt2W_putHashAlgorithm(crypt,L"sha256"); linearHashHex = CkCrypt2W_hashBdENC(crypt,bd); CkAuthAwsW_putPrecomputedSha256(authAws,linearHashHex); // We can optionally add a description CkRestW_AddHeader(rest,L"x-amz-archive-description",L"Penguins JPG"); sbResponseBody = CkStringBuilderW_Create(); success = CkRestW_FullRequestBd(rest,L"POST",L"/AWS_ACCOUNT_ID/vaults/chilkat/archives",bd,sbResponseBody); if (success != TRUE) { wprintf(L"%s\n",CkRestW_lastErrorText(rest)); CkRestW_Dispose(rest); CkAuthAwsW_Dispose(authAws); CkBinDataW_Dispose(bd); CkCrypt2W_Dispose(crypt); CkStringBuilderW_Dispose(sbResponseBody); return; } respStatusCode = CkRestW_getResponseStatusCode(rest); if (respStatusCode >= 400) { wprintf(L"Response Status Code = %d\n",respStatusCode); wprintf(L"Response Header:\n"); wprintf(L"%s\n",CkRestW_responseHeader(rest)); wprintf(L"Response Body:\n"); wprintf(L"%s\n",CkStringBuilderW_getAsString(sbResponseBody)); CkRestW_Dispose(rest); CkAuthAwsW_Dispose(authAws); CkBinDataW_Dispose(bd); CkCrypt2W_Dispose(crypt); CkStringBuilderW_Dispose(sbResponseBody); return; } // Success is indicated by a 201 response status with an empty response body. wprintf(L"response status code = %d\n",respStatusCode); // If successful, the response header looks like this. // The Location and x-amz-archive-id are two items of information we may wish to save.. // HTTP/1.1 201 Created // x-amzn-RequestId: AAABZpJrTyioDC_HsOmHae8EZp_uBSJr6cnGOLKp_XJCl-Q // Date: Wed, 10 Feb 2017 12:00:00 GMT // x-amz-sha256-tree-hash: beb0fe31a1c7ca8c6c04d574ea906e3f97b31fdca7571defb5b44dca89b5af60 // Location: /111122223333/vaults/examplevault/archives/NkbByEejwEggmBz2fTH ... GlqrEXAMPLEArchiveId // x-amz-archive-id: NkbByEejwEggmBz2fTHgJrg0XBoDfjP4q6iu87-TjhqG6eGoOY9Z8i1_AUyUsu ... BfGlqrEXAMPLEArchiveId // archiveId = CkRestW_responseHdrByName(rest,L"x-amz-archive-id"); wprintf(L"x-amz-archive-id = %s\n",archiveId); location = CkRestW_responseHdrByName(rest,L"Location"); wprintf(L"Location = %s\n",location); CkRestW_Dispose(rest); CkAuthAwsW_Dispose(authAws); CkBinDataW_Dispose(bd); CkCrypt2W_Dispose(crypt); CkStringBuilderW_Dispose(sbResponseBody); } |
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